<html>
	<head>
		<title>ͼ3-7</title>
	</head>
	<body>
		<table width="20%">
			<tr bgcolor="#000001" height="80px">
				<td colspan="2"><span style="color.#ffffff">haeder<span></td>
			</tr>
			<tr bgcolor="#666666" height="80px">
				<td colspan="2"><span style="color.#ffffff">nav<span></td>
			</tr>
			<tr bgcolor="#aaaaaa" height="150px">
			    <td><span style="color.#ffffff">aside<span></td>
				<td colspan="2"><span style="color.#ffffff">atrcle<span></td>
			</tr>
			<tr bgcolor="#12345d" height="150px">
				<td><span style="color.#ffffff">section<span></td>
			</tr>
			<tr bgcolor="#945121" height="80px">
				<td colspan="2"><span style="color.#ffffff">footer<span></td>
			</tr>
		</table>
	</body>
</html>